Stripped warning? (Image corruption detection

[s-pmpodolski]

Thank you for your great library.

When I'm using imagemagick on broken jpeg (prematurely closed), I would get such a warnings:

identify: Corrupt JPEG data: found marker 0xd9 instead of RST1 `broken2.jpg' @ warning/jpeg.c/JPEGWarningHandler/352.

When I'm using identify inside gm:

gm('broken2.jpg').identify({verbose: true}, function (err, data) { ... })

There is no such a warning.

It's not returned from

var identifyStream = gm()
.command('identify')
.in('-verbose')
.in('broken2.jpg')
.stream().pipe(process.stdout);

as well. What I want to achieve is to detect corrupted images (not only jpegs). Maybe there is another method?

Thanks!

[Cactusbone]

I've done it fast and dirty by sending stderr as third argument to identify callback

https://github.com/F4-Group/gm/tree/identify-stderr

gm(imagePath).identify(function (err, value, stderr) {});

however, this is useful to me to detect Premature end of JPEG file
Corrupt JPEG data already ends up in err

EDIT: looks like it might depends on imagemagick version. this works for me using version 6.9 (windows) but not 6.7 (linux). does work with 6.8 linux :)

[bkarlson]

stderr from identify() is returned in data.warning